Atoms, elements and the periodic table

Question 1 of 10

The positive particle in the nucleus is the ___.

Question 2 of 10

An atom has atomic number 17 and mass number 35. Find the number of protons, electrons and neutrons and write its electron arrangement.

Question 3 of 10

Atoms of the same element with different numbers of neutrons are ___.

Question 4 of 10

Atoms of the same element with different numbers of neutrons are

Question 5 of 10

Elements in the same group have similar chemical properties.

Question 6 of 10

The particle with no charge in the nucleus is the

Question 7 of 10

In a neutral atom, the number of electrons equals the number of

Question 8 of 10

The electron arrangement of an atom with 6 electrons (carbon) is 2, ___.

Question 9 of 10

Which group contains the noble gases?

Question 10 of 10

The electron arrangement of an atom with 11 electrons (sodium) is